146561451 has 16 divisors (see below), whose sum is σ = 204664320. Its totient is φ = 93114560.

The previous prime is 146561423. The next prime is 146561453. The reversal of 146561451 is 154165641.

It is a cyclic number.

It is not a de Polignac number, because 146561451 - 2⁵ = 146561419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146561453) 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, 15610 + ... + 23168.

It is an arithmetic number, because the mean of its divisors is an integer number (12791520).

Almost surely, 2^146561451 is an apocalyptic number.

146561451 is a deficient number, since it is larger than the sum of its proper divisors (58102869).

146561451 is a wasteful number, since it uses less digits than its factorization.

146561451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866.

The product of its digits is 14400, while the sum is 33.

The square root of 146561451 is about 12106.2566881757. The cubic root of 146561451 is about 527.2378560164.

The spelling of 146561451 in words is "one hundred forty-six million, five hundred sixty-one thousand, four hundred fifty-one".