150117551 has 4 divisors (see below), whose sum is σ = 150147600. Its totient is φ = 150087504.

The previous prime is 150117533. The next prime is 150117553. The reversal of 150117551 is 155711051.

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

It is a cyclic number.

It is not a de Polignac number, because 150117551 - 2¹⁴ = 150101167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150117551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150117553) 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, 5531 + ... + 18188.

It is an arithmetic number, because the mean of its divisors is an integer number (37536900).

Almost surely, 2^150117551 is an apocalyptic number.

150117551 is a deficient number, since it is larger than the sum of its proper divisors (30049).

150117551 is an equidigital number, since it uses as much as digits as its factorization.

150117551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30048.

The product of its (nonzero) digits is 875, while the sum is 26.

The square root of 150117551 is about 12252.2467735514. The cubic root of 150117551 is about 531.4680445473.

The spelling of 150117551 in words is "one hundred fifty million, one hundred seventeen thousand, five hundred fifty-one".