1137196421 has 8 divisors (see below), whose sum is σ = 1154818944. Its totient is φ = 1119618640.

The previous prime is 1137196399. The next prime is 1137196433. The reversal of 1137196421 is 1246917311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1137196421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137196441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41975 + ... + 63531.

It is an arithmetic number, because the mean of its divisors is an integer number (144352368).

Almost surely, 2^1137196421 is an apocalyptic number.

It is an amenable number.

1137196421 is a deficient number, since it is larger than the sum of its proper divisors (17622523).

1137196421 is an equidigital number, since it uses as much as digits as its factorization.

1137196421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22371.

The product of its digits is 9072, while the sum is 35.

The square root of 1137196421 is about 33722.3430532340. The cubic root of 1137196421 is about 1043.7868666099.

The spelling of 1137196421 in words is "one billion, one hundred thirty-seven million, one hundred ninety-six thousand, four hundred twenty-one".