149697741 has 4 divisors (see below), whose sum is σ = 199596992. Its totient is φ = 99798492.

The previous prime is 149697719. The next prime is 149697763. The reversal of 149697741 is 147796941.

149697741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 147796941 = 3 ⋅49265647.

It is an interprime number because it is at equal distance from previous prime (149697719) and next prime (149697763).

It is not a de Polignac number, because 149697741 - 2¹⁵ = 149664973 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 (149697701) 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, 24949621 + ... + 24949626.

It is an arithmetic number, because the mean of its divisors is an integer number (49899248).

Almost surely, 2^149697741 is an apocalyptic number.

It is an amenable number.

149697741 is a deficient number, since it is larger than the sum of its proper divisors (49899251).

149697741 is an equidigital number, since it uses as much as digits as its factorization.

149697741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49899250.

The product of its digits is 381024, while the sum is 48.

The square root of 149697741 is about 12235.1028193473. The cubic root of 149697741 is about 530.9721578104.

The spelling of 149697741 in words is "one hundred forty-nine million, six hundred ninety-seven thousand, seven hundred forty-one".