31400435147 has 2 divisors, whose sum is σ = 31400435148. Its totient is φ = 31400435146.

The previous prime is 31400435113. The next prime is 31400435161. The reversal of 31400435147 is 74153400413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31400435147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31400435347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15700217573 + 15700217574.

It is an arithmetic number, because the mean of its divisors is an integer number (15700217574).

Almost surely, 2^31400435147 is an apocalyptic number.

31400435147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400435147 is an equidigital number, since it uses as much as digits as its factorization.

31400435147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 31400435147 in words is "thirty-one billion, four hundred million, four hundred thirty-five thousand, one hundred forty-seven".