150213551 has 4 divisors (see below), whose sum is σ = 153409632. Its totient is φ = 147017472.

The previous prime is 150213509. The next prime is 150213589. The reversal of 150213551 is 155312051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150213551 is a prime.

It is a super-2 number, since 2×150213551² = 45128221808059202, 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 (150263551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597970 + ... + 1598063.

It is an arithmetic number, because the mean of its divisors is an integer number (38352408).

Almost surely, 2^150213551 is an apocalyptic number.

150213551 is a deficient number, since it is larger than the sum of its proper divisors (3196081).

150213551 is an equidigital number, since it uses as much as digits as its factorization.

150213551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196080.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 150213551 is about 12256.1637962292. The cubic root of 150213551 is about 531.5813114724.

The spelling of 150213551 in words is "one hundred fifty million, two hundred thirteen thousand, five hundred fifty-one".