2451451531 has 2 divisors, whose sum is σ = 2451451532. Its totient is φ = 2451451530.

The previous prime is 2451451507. The next prime is 2451451553. The reversal of 2451451531 is 1351541542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2451451531 - 2¹⁵ = 2451418763 is a prime.

It is a super-2 number, since 2×2451451531² = 12019229217684487922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2451451493 and 2451451502.

It is not a weakly prime, because it can be changed into another prime (2451451031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225725765 + 1225725766.

It is an arithmetic number, because the mean of its divisors is an integer number (1225725766).

Almost surely, 2^2451451531 is an apocalyptic number.

2451451531 is the 22143-rd centered decagonal number.

2451451531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451451531 is an equidigital number, since it uses as much as digits as its factorization.

2451451531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 31.

The square root of 2451451531 is about 49512.1351892645. The cubic root of 2451451531 is about 1348.3659297873.

The spelling of 2451451531 in words is "two billion, four hundred fifty-one million, four hundred fifty-one thousand, five hundred thirty-one".