157541549 has 8 divisors (see below), whose sum is σ = 173385792. Its totient is φ = 141951040.

The previous prime is 157541537. The next prime is 157541561. The reversal of 157541549 is 945145751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157541537) and next prime (157541561).

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

It is a de Polignac number, because none of the positive numbers 2^k-157541549 is a prime.

It is a super-2 number, since 2×157541549² = 49638679322638802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157541569) 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, 62129 + ... + 64614.

It is an arithmetic number, because the mean of its divisors is an integer number (21673224).

Almost surely, 2^157541549 is an apocalyptic number.

It is an amenable number.

157541549 is a deficient number, since it is larger than the sum of its proper divisors (15844243).

157541549 is a wasteful number, since it uses less digits than its factorization.

157541549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126867.

The product of its digits is 126000, while the sum is 41.

The square root of 157541549 is about 12551.5556406367. Note that the first 3 decimals coincide. The cubic root of 157541549 is about 540.0886331423.

The spelling of 157541549 in words is "one hundred fifty-seven million, five hundred forty-one thousand, five hundred forty-nine".