146965640 has 32 divisors (see below), whose sum is σ = 332403480. Its totient is φ = 58478592.

The previous prime is 146965633. The next prime is 146965657. The reversal of 146965640 is 46569641.

It can be written as a sum of positive squares in 4 ways, for example, as 48916036 + 98049604 = 6994^2 + 9902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799 + ... + 17238.

Almost surely, 2^146965640 is an apocalyptic number.

146965640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146965640 is an abundant number, since it is smaller than the sum of its proper divisors (185437840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146965640 is a wasteful number, since it uses less digits than its factorization.

146965640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19241 (or 19237 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 146965640 is about 12122.9385876527. The cubic root of 146965640 is about 527.7220855321.

The spelling of 146965640 in words is "one hundred forty-six million, nine hundred sixty-five thousand, six hundred forty".