1420250531 has 4 divisors (see below), whose sum is σ = 1623143472. Its totient is φ = 1217357592.

The previous prime is 1420250521. The next prime is 1420250539. The reversal of 1420250531 is 1350520241.

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 1420250531 - 2¹⁰ = 1420249507 is a prime.

It is a super-2 number, since 2×1420250531² = 4034223141611563922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420250497 and 1420250506.

It is not an unprimeable number, because it can be changed into a prime (1420250539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101446460 + ... + 101446473.

It is an arithmetic number, because the mean of its divisors is an integer number (405785868).

Almost surely, 2^1420250531 is an apocalyptic number.

1420250531 is a deficient number, since it is larger than the sum of its proper divisors (202892941).

1420250531 is an equidigital number, since it uses as much as digits as its factorization.

1420250531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202892940.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1420250531 is about 37686.2114174402. The cubic root of 1420250531 is about 1124.0569627354.

Adding to 1420250531 its reverse (1350520241), we get a palindrome (2770770772).

The spelling of 1420250531 in words is "one billion, four hundred twenty million, two hundred fifty thousand, five hundred thirty-one".