1137220851 has 32 divisors (see below), whose sum is σ = 1722138880. Its totient is φ = 661737600.

The previous prime is 1137220849. The next prime is 1137220853. The reversal of 1137220851 is 1580227311.

It is an interprime number because it is at equal distance from previous prime (1137220849) and next prime (1137220853).

It is not a de Polignac number, because 1137220851 - 2¹ = 1137220849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1137220853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510921 + ... + 513141.

It is an arithmetic number, because the mean of its divisors is an integer number (53816840).

Almost surely, 2^1137220851 is an apocalyptic number.

1137220851 is a deficient number, since it is larger than the sum of its proper divisors (584918029).

1137220851 is a wasteful number, since it uses less digits than its factorization.

1137220851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 1137220851 is about 33722.7052740435. The cubic root of 1137220851 is about 1043.7943409946.

It can be divided in two parts, 11372 and 20851, that added together give a palindrome (32223).

The spelling of 1137220851 in words is "one billion, one hundred thirty-seven million, two hundred twenty thousand, eight hundred fifty-one".