31400054 has 16 divisors (see below), whose sum is σ = 56995488. Its totient is φ = 12665472.

The previous prime is 31400053. The next prime is 31400063. The reversal of 31400054 is 45000413.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65729 + ... + 66204.

It is an arithmetic number, because the mean of its divisors is an integer number (3562218).

Almost surely, 2^31400054 is an apocalyptic number.

31400054 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31400054 is a deficient number, since it is larger than the sum of its proper divisors (25595434).

31400054 is a wasteful number, since it uses less digits than its factorization.

31400054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131959.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 31400054 is about 5603.5751088033. The cubic root of 31400054 is about 315.4836075379.

Adding to 31400054 its reverse (45000413), we get a palindrome (76400467).

The spelling of 31400054 in words is "thirty-one million, four hundred thousand, fifty-four".