149987753 has 8 divisors (see below), whose sum is σ = 159514272. Its totient is φ = 140539456.

The previous prime is 149987711. The next prime is 149987801. The reversal of 149987753 is 357789941.

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 149987753 - 2²⁰ = 148939177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149987695 and 149987704.

It is not an unprimeable number, because it can be changed into a prime (149987153) 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, 15575 + ... + 23292.

It is an arithmetic number, because the mean of its divisors is an integer number (19939284).

Almost surely, 2^149987753 is an apocalyptic number.

It is an amenable number.

149987753 is a deficient number, since it is larger than the sum of its proper divisors (9526519).

149987753 is a wasteful number, since it uses less digits than its factorization.

149987753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39111.

The product of its digits is 1905120, while the sum is 53.

The square root of 149987753 is about 12246.9487220287. The cubic root of 149987753 is about 531.3148237761.

The spelling of 149987753 in words is "one hundred forty-nine million, nine hundred eighty-seven thousand, seven hundred fifty-three".