151199806 has 4 divisors (see below), whose sum is σ = 226799712. Its totient is φ = 75599902.

The previous prime is 151199791. The next prime is 151199827. The reversal of 151199806 is 608991151.

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

It is a super-2 number, since 2×151199806² = 45722762668875272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37799950 + ... + 37799953.

It is an arithmetic number, because the mean of its divisors is an integer number (56699928).

Almost surely, 2^151199806 is an apocalyptic number.

151199806 is a deficient number, since it is larger than the sum of its proper divisors (75599906).

151199806 is an equidigital number, since it uses as much as digits as its factorization.

151199806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75599905.

The product of its (nonzero) digits is 19440, while the sum is 40.

The square root of 151199806 is about 12296.3330306234. Note that the first 3 decimals coincide. The cubic root of 151199806 is about 532.7421731971.

The spelling of 151199806 in words is "one hundred fifty-one million, one hundred ninety-nine thousand, eight hundred six".