1522312061 has 4 divisors (see below), whose sum is σ = 1522413312. Its totient is φ = 1522210812.

The previous prime is 1522312049. The next prime is 1522312081. The reversal of 1522312061 is 1602132251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1602132251 = 1721 ⋅930931.

It is a cyclic number.

It is not a de Polignac number, because 1522312061 - 2³⁰ = 448570237 is a prime.

It is a super-2 number, since 2×1522312061² = 4634868022132135442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522312081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23075 + ... + 59808.

It is an arithmetic number, because the mean of its divisors is an integer number (380603328).

Almost surely, 2^1522312061 is an apocalyptic number.

It is an amenable number.

1522312061 is a deficient number, since it is larger than the sum of its proper divisors (101251).

1522312061 is an equidigital number, since it uses as much as digits as its factorization.

1522312061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101250.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1522312061 is about 39016.8176687951. The cubic root of 1522312061 is about 1150.3620941690.

The spelling of 1522312061 in words is "one billion, five hundred twenty-two million, three hundred twelve thousand, sixty-one".