29975146 has 4 divisors (see below), whose sum is σ = 44962722. Its totient is φ = 14987572.

The previous prime is 29975129. The next prime is 29975147. The reversal of 29975146 is 64157992.

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., 24890121 + 5085025 = 4989^2 + 2255^2 .

It is not an unprimeable number, because it can be changed into a prime (29975147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7493785 + ... + 7493788.

Almost surely, 2^29975146 is an apocalyptic number.

29975146 is a deficient number, since it is larger than the sum of its proper divisors (14987576).

29975146 is a wasteful number, since it uses less digits than its factorization.

29975146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987575.

The product of its digits is 136080, while the sum is 43.

The square root of 29975146 is about 5474.9562555330. The cubic root of 29975146 is about 310.6374189362.

The spelling of 29975146 in words is "twenty-nine million, nine hundred seventy-five thousand, one hundred forty-six".