1420156506 has 32 divisors (see below), whose sum is σ = 3111099840. Its totient is φ = 430174976.

The previous prime is 1420156499. The next prime is 1420156547. The reversal of 1420156506 is 6056510241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237096 + ... + 243011.

It is an arithmetic number, because the mean of its divisors is an integer number (97221870).

Almost surely, 2^1420156506 is an apocalyptic number.

1420156506 is an abundant number, since it is smaller than the sum of its proper divisors (1690943334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420156506 is a wasteful number, since it uses less digits than its factorization.

1420156506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480158.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1420156506 is about 37684.9639246212. The cubic root of 1420156506 is about 1124.0321568330.

Adding to 1420156506 its reverse (6056510241), we get a palindrome (7476666747).

It can be divided in two parts, 14201 and 56506, that added together give a palindrome (70707).

The spelling of 1420156506 in words is "one billion, four hundred twenty million, one hundred fifty-six thousand, five hundred six".