161457465 has 16 divisors (see below), whose sum is σ = 278203968. Its totient is φ = 79486656.

The previous prime is 161457427. The next prime is 161457469. The reversal of 161457465 is 564754161.

It is not a de Polignac number, because 161457465 - 2⁸ = 161457209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (161457469) 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, 413799 + ... + 414188.

It is an arithmetic number, because the mean of its divisors is an integer number (17387748).

Almost surely, 2^161457465 is an apocalyptic number.

161457465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161457465 is a deficient number, since it is larger than the sum of its proper divisors (116746503).

161457465 is a wasteful number, since it uses less digits than its factorization.

161457465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828008.

The product of its digits is 100800, while the sum is 39.

The square root of 161457465 is about 12706.5913997421. The cubic root of 161457465 is about 544.5269469201.

The spelling of 161457465 in words is "one hundred sixty-one million, four hundred fifty-seven thousand, four hundred sixty-five".