150978554 has 8 divisors (see below), whose sum is σ = 226540020. Its totient is φ = 75465216.

The previous prime is 150978551. The next prime is 150978557. The reversal of 150978554 is 455879051.

It is an interprime number because it is at equal distance from previous prime (150978551) and next prime (150978557).

It can be written as a sum of positive squares in 2 ways, for example, as 145757329 + 5221225 = 12073^2 + 2285^2 .

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

It is not an unprimeable number, because it can be changed into a prime (150978551) 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, 2759 + ... + 17594.

Almost surely, 2^150978554 is an apocalyptic number.

150978554 is a deficient number, since it is larger than the sum of its proper divisors (75561466).

150978554 is a wasteful number, since it uses less digits than its factorization.

150978554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24064.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 150978554 is about 12287.3330710940. Note that the first 3 decimals coincide. The cubic root of 150978554 is about 532.4821909155.

The spelling of 150978554 in words is "one hundred fifty million, nine hundred seventy-eight thousand, five hundred fifty-four".