1371890531 has 32 divisors (see below), whose sum is σ = 1627128000. Its totient is φ = 1142702080.

The previous prime is 1371890521. The next prime is 1371890539. The reversal of 1371890531 is 1350981731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1371890531 is a prime.

It is a super-2 number, since 2×1371890531² = 3764167258094923922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1371890539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1476275 + ... + 1477203.

It is an arithmetic number, because the mean of its divisors is an integer number (50847750).

Almost surely, 2^1371890531 is an apocalyptic number.

1371890531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1371890531 is a deficient number, since it is larger than the sum of its proper divisors (255237469).

1371890531 is a wasteful number, since it uses less digits than its factorization.

1371890531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1371890531 is about 37039.0406328242. The cubic root of 1371890531 is about 1111.1511826656.

The spelling of 1371890531 in words is "one billion, three hundred seventy-one million, eight hundred ninety thousand, five hundred thirty-one".