154640465 has 16 divisors (see below), whose sum is σ = 213040128. Its totient is φ = 105558336.

The previous prime is 154640443. The next prime is 154640491. The reversal of 154640465 is 564046451.

It is a cyclic number.

It is not a de Polignac number, because 154640465 - 2⁶ = 154640401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 2102 + ... + 17711.

It is an arithmetic number, because the mean of its divisors is an integer number (13315008).

Almost surely, 2^154640465 is an apocalyptic number.

It is an amenable number.

154640465 is a deficient number, since it is larger than the sum of its proper divisors (58399663).

154640465 is a wasteful number, since it uses less digits than its factorization.

154640465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20048.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 154640465 is about 12435.4519419280. The cubic root of 154640465 is about 536.7528786994.

The spelling of 154640465 in words is "one hundred fifty-four million, six hundred forty thousand, four hundred sixty-five".