47490154 has 4 divisors (see below), whose sum is σ = 71235234. Its totient is φ = 23745076.

The previous prime is 47490151. The next prime is 47490169. The reversal of 47490154 is 45109474.

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., 36421225 + 11068929 = 6035^2 + 3327^2 .

It is not an unprimeable number, because it can be changed into a prime (47490151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11872537 + ... + 11872540.

Almost surely, 2^47490154 is an apocalyptic number.

47490154 is a deficient number, since it is larger than the sum of its proper divisors (23745080).

47490154 is a wasteful number, since it uses less digits than its factorization.

47490154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23745079.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 47490154 is about 6891.3100351094. The cubic root of 47490154 is about 362.1327972435.

The spelling of 47490154 in words is "forty-seven million, four hundred ninety thousand, one hundred fifty-four".