1552131465 has 16 divisors (see below), whose sum is σ = 2543982336. Its totient is φ = 807612800.

The previous prime is 1552131437. The next prime is 1552131523. The reversal of 1552131465 is 5641312551.

It is not a de Polignac number, because 1552131465 - 2⁸ = 1552131209 is a prime.

It is a super-2 number, since 2×1552131465² = 4818224169286092450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261281 + ... + 1262510.

It is an arithmetic number, because the mean of its divisors is an integer number (158998896).

Almost surely, 2^1552131465 is an apocalyptic number.

1552131465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1552131465 is a deficient number, since it is larger than the sum of its proper divisors (991850871).

1552131465 is a wasteful number, since it uses less digits than its factorization.

1552131465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523840.

The product of its digits is 18000, while the sum is 33.

The square root of 1552131465 is about 39397.0997028969. The cubic root of 1552131465 is about 1157.8247644549.

The spelling of 1552131465 in words is "one billion, five hundred fifty-two million, one hundred thirty-one thousand, four hundred sixty-five".