1945157 has 8 divisors (see below), whose sum is σ = 2126592. Its totient is φ = 1771200.

The previous prime is 1945129. The next prime is 1945169. The reversal of 1945157 is 7515491.

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

It is a cyclic number.

It is not a de Polignac number, because 1945157 - 2⁶ = 1945093 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 (1945057) 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, 1319 + ... + 2372.

It is an arithmetic number, because the mean of its divisors is an integer number (265824).

2^1945157 is an apocalyptic number.

1945157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1945157 is a deficient number, since it is larger than the sum of its proper divisors (181435).

1945157 is a wasteful number, since it uses less digits than its factorization.

1945157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739.

The product of its digits is 6300, while the sum is 32.

The square root of 1945157 is about 1394.6888541893. The cubic root of 1945157 is about 124.8297843182.

The spelling of 1945157 in words is "one million, nine hundred forty-five thousand, one hundred fifty-seven".