1489937157 has 24 divisors (see below), whose sum is σ = 2168694528. Its totient is φ = 985672800.

The previous prime is 1489937131. The next prime is 1489937167. The reversal of 1489937157 is 7517399841.

It is a happy number.

1489937157 is a `hidden beast` number, since 1 + 489 + 9 + 3 + 7 + 157 = 666.

It is not a de Polignac number, because 1489937157 - 2¹² = 1489933061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489937107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1209732 + ... + 1210962.

It is an arithmetic number, because the mean of its divisors is an integer number (90362272).

Almost surely, 2^1489937157 is an apocalyptic number.

It is an amenable number.

1489937157 is a deficient number, since it is larger than the sum of its proper divisors (678757371).

1489937157 is a wasteful number, since it uses less digits than its factorization.

1489937157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2158 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 1489937157 is about 38599.7041050835. The cubic root of 1489937157 is about 1142.1487014518.

The spelling of 1489937157 in words is "one billion, four hundred eighty-nine million, nine hundred thirty-seven thousand, one hundred fifty-seven".