1421310156 has 48 divisors (see below), whose sum is σ = 3892605696. Its totient is φ = 395112384.

The previous prime is 1421310133. The next prime is 1421310157. The reversal of 1421310156 is 6510131241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1421310157) by changing a digit.

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, 225546 + ... + 231761.

It is an arithmetic number, because the mean of its divisors is an integer number (81095952).

Almost surely, 2^1421310156 is an apocalyptic number.

It is an amenable number.

1421310156 is an abundant number, since it is smaller than the sum of its proper divisors (2471295540).

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

1421310156 is a wasteful number, since it uses less digits than its factorization.

1421310156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457358 (or 457356 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1421310156 is about 37700.2673200072. The cubic root of 1421310156 is about 1124.3364398984.

Adding to 1421310156 its reverse (6510131241), we get a palindrome (7931441397).

The spelling of 1421310156 in words is "one billion, four hundred twenty-one million, three hundred ten thousand, one hundred fifty-six".