40145156 has 6 divisors (see below), whose sum is σ = 70254030. Its totient is φ = 20072576.

The previous prime is 40145113. The next prime is 40145167. The reversal of 40145156 is 65154104.

It can be written as a sum of positive squares in only one way, i.e., 40119556 + 25600 = 6334^2 + 160^2 .

It is a super-2 number, since 2×40145156² = 3223267100528672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5018141 + ... + 5018148.

It is an arithmetic number, because the mean of its divisors is an integer number (11709005).

Almost surely, 2^40145156 is an apocalyptic number.

It is an amenable number.

40145156 is a deficient number, since it is larger than the sum of its proper divisors (30108874).

40145156 is a wasteful number, since it uses less digits than its factorization.

40145156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10036293 (or 10036291 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 40145156 is about 6336.0205176435. The cubic root of 40145156 is about 342.4083787109.

The spelling of 40145156 in words is "forty million, one hundred forty-five thousand, one hundred fifty-six".