1957149 has 16 divisors (see below), whose sum is σ = 2923200. Its totient is φ = 1294128.

The previous prime is 1957147. The next prime is 1957157. The reversal of 1957149 is 9417591.

It is not a de Polignac number, because 1957149 - 2¹ = 1957147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4462 + ... + 4880.

It is an arithmetic number, because the mean of its divisors is an integer number (182700).

2^1957149 is an apocalyptic number.

It is an amenable number.

1957149 is a deficient number, since it is larger than the sum of its proper divisors (966051).

1957149 is a wasteful number, since it uses less digits than its factorization.

1957149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 595 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 1957149 is about 1398.9814151732. The cubic root of 1957149 is about 125.0857864454.

The spelling of 1957149 in words is "one million, nine hundred fifty-seven thousand, one hundred forty-nine".