150666397 has 8 divisors (see below), whose sum is σ = 178128000. Its totient is φ = 124689264.

The previous prime is 150666389. The next prime is 150666407. The reversal of 150666397 is 793666051.

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

It is not a de Polignac number, because 150666397 - 2³ = 150666389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150666337) 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, 370897 + ... + 371302.

It is an arithmetic number, because the mean of its divisors is an integer number (22266000).

Almost surely, 2^150666397 is an apocalyptic number.

It is an amenable number.

150666397 is a deficient number, since it is larger than the sum of its proper divisors (27461603).

150666397 is an equidigital number, since it uses as much as digits as its factorization.

150666397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742235.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 150666397 is about 12274.6241082976. The cubic root of 150666397 is about 532.1149583388.

The spelling of 150666397 in words is "one hundred fifty million, six hundred sixty-six thousand, three hundred ninety-seven".