1061620151 has 4 divisors (see below), whose sum is σ = 1062561600. Its totient is φ = 1060678704.

The previous prime is 1061620121. The next prime is 1061620171. The reversal of 1061620151 is 1510261601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1510261601 = 797 ⋅1894933.

It is a cyclic number.

It is not a de Polignac number, because 1061620151 - 2¹⁸ = 1061358007 is a prime.

It is a super-2 number, since 2×1061620151² = 2254074690018525602, 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 (1061620111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469031 + ... + 471288.

It is an arithmetic number, because the mean of its divisors is an integer number (265640400).

Almost surely, 2^1061620151 is an apocalyptic number.

1061620151 is a deficient number, since it is larger than the sum of its proper divisors (941449).

1061620151 is an equidigital number, since it uses as much as digits as its factorization.

1061620151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941448.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1061620151 is about 32582.5129632446. The cubic root of 1061620151 is about 1020.1320318001.

Adding to 1061620151 its reverse (1510261601), we get a palindrome (2571881752).

The spelling of 1061620151 in words is "one billion, sixty-one million, six hundred twenty thousand, one hundred fifty-one".