4156240631 has 4 divisors (see below), whose sum is σ = 4400725392. Its totient is φ = 3911755872.

The previous prime is 4156240603. The next prime is 4156240661. The reversal of 4156240631 is 1360426514.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4156240631 - 2⁶ = 4156240567 is a prime.

It is a super-2 number, since 2×4156240631² = 34548672365550556322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156240661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122242355 + ... + 122242388.

It is an arithmetic number, because the mean of its divisors is an integer number (1100181348).

Almost surely, 2^4156240631 is an apocalyptic number.

4156240631 is a deficient number, since it is larger than the sum of its proper divisors (244484761).

4156240631 is a wasteful number, since it uses less digits than its factorization.

4156240631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244484760.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 4156240631 is about 64468.9121282498. The cubic root of 4156240631 is about 1607.8056897403.

The spelling of 4156240631 in words is "four billion, one hundred fifty-six million, two hundred forty thousand, six hundred thirty-one".