149613797 has 8 divisors (see below), whose sum is σ = 154187712. Its totient is φ = 145084000.

The previous prime is 149613791. The next prime is 149613803. The reversal of 149613797 is 797316941.

It is an interprime number because it is at equal distance from previous prime (149613791) and next prime (149613803).

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

It is a cyclic number.

It is not a de Polignac number, because 149613797 - 2¹² = 149609701 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 (149613791) 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, 4079 + ... + 17772.

It is an arithmetic number, because the mean of its divisors is an integer number (19273464).

Almost surely, 2^149613797 is an apocalyptic number.

It is an amenable number.

149613797 is a deficient number, since it is larger than the sum of its proper divisors (4573915).

149613797 is a wasteful number, since it uses less digits than its factorization.

149613797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22059.

The product of its digits is 285768, while the sum is 47.

The square root of 149613797 is about 12231.6718808183. The cubic root of 149613797 is about 530.8728905348.

The spelling of 149613797 in words is "one hundred forty-nine million, six hundred thirteen thousand, seven hundred ninety-seven".