146813961 has 16 divisors (see below), whose sum is σ = 224700800. Its totient is φ = 83524608.

The previous prime is 146813957. The next prime is 146813971. The reversal of 146813961 is 169318641.

It is not a de Polignac number, because 146813961 - 2² = 146813957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146813971) 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, 10456 + ... + 20073.

It is an arithmetic number, because the mean of its divisors is an integer number (14043800).

Almost surely, 2^146813961 is an apocalyptic number.

It is an amenable number.

146813961 is a deficient number, since it is larger than the sum of its proper divisors (77886839).

146813961 is a wasteful number, since it uses less digits than its factorization.

146813961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30768.

The product of its digits is 31104, while the sum is 39.

The square root of 146813961 is about 12116.6811049891. The cubic root of 146813961 is about 527.5404741224.

The spelling of 146813961 in words is "one hundred forty-six million, eight hundred thirteen thousand, nine hundred sixty-one".