1522020061 has 16 divisors (see below), whose sum is σ = 1625400000. Its totient is φ = 1421076096.

The previous prime is 1522020043. The next prime is 1522020077. The reversal of 1522020061 is 1600202251.

It is a cyclic number.

It is not a de Polignac number, because 1522020061 - 2⁵ = 1522020029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522020001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588870 + ... + 591448.

It is an arithmetic number, because the mean of its divisors is an integer number (101587500).

Almost surely, 2^1522020061 is an apocalyptic number.

It is an amenable number.

1522020061 is a deficient number, since it is larger than the sum of its proper divisors (103379939).

1522020061 is a wasteful number, since it uses less digits than its factorization.

1522020061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1522020061 is about 39013.0755132174. The cubic root of 1522020061 is about 1150.2885378070.

The spelling of 1522020061 in words is "one billion, five hundred twenty-two million, twenty thousand, sixty-one".