149921098 has 4 divisors (see below), whose sum is σ = 224881650. Its totient is φ = 74960548.

The previous prime is 149921089. The next prime is 149921099. The reversal of 149921098 is 890129941.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 77211369 + 72709729 = 8787^2 + 8527^2 .

It is not an unprimeable number, because it can be changed into a prime (149921099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37480273 + ... + 37480276.

Almost surely, 2^149921098 is an apocalyptic number.

149921098 is a deficient number, since it is larger than the sum of its proper divisors (74960552).

149921098 is an equidigital number, since it uses as much as digits as its factorization.

149921098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74960551.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 149921098 is about 12244.2271295497. The cubic root of 149921098 is about 531.2361061557.

The spelling of 149921098 in words is "one hundred forty-nine million, nine hundred twenty-one thousand, ninety-eight".