61149402 has 36 divisors (see below), whose sum is σ = 134201886. Its totient is φ = 20122560.

The previous prime is 61149401. The next prime is 61149421. The reversal of 61149402 is 20494116.

61149402 is a `hidden beast` number, since 611 + 4 + 9 + 40 + 2 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 39050001 + 22099401 = 6249^2 + 4701^2 .

It is not an unprimeable number, because it can be changed into a prime (61149401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 337752 + ... + 337932.

Almost surely, 2^61149402 is an apocalyptic number.

61149402 is an abundant number, since it is smaller than the sum of its proper divisors (73052484).

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

61149402 is a wasteful number, since it uses less digits than its factorization.

61149402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 61149402 is about 7819.8083096710. The cubic root of 61149402 is about 393.9708336437.

The spelling of 61149402 in words is "sixty-one million, one hundred forty-nine thousand, four hundred two".