1151972 has 12 divisors (see below), whose sum is σ = 2037420. Its totient is φ = 569856.

The previous prime is 1151963. The next prime is 1151981. The reversal of 1151972 is 2791511.

It is an interprime number because it is at equal distance from previous prime (1151963) and next prime (1151981).

It can be written as a sum of positive squares in 2 ways, for example, as 179776 + 972196 = 424^2 + 986^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097 + ... + 1872.

It is an arithmetic number, because the mean of its divisors is an integer number (169785).

2^1151972 is an apocalyptic number.

It is an amenable number.

1151972 is a deficient number, since it is larger than the sum of its proper divisors (885448).

1151972 is a wasteful number, since it uses less digits than its factorization.

1151972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070 (or 3068 counting only the distinct ones).

The product of its digits is 630, while the sum is 26.

The square root of 1151972 is about 1073.2995853908. The cubic root of 1151972 is about 104.8288064471.

The spelling of 1151972 in words is "one million, one hundred fifty-one thousand, nine hundred seventy-two".