145347418 has 4 divisors (see below), whose sum is σ = 218021130. Its totient is φ = 72673708.

The previous prime is 145347401. The next prime is 145347431. The reversal of 145347418 is 814743541.

145347418 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 an emirpimes, since its reverse is a distinct semiprime: 814743541 = 19 ⋅42881239.

It can be written as a sum of positive squares in only one way, i.e., 113571649 + 31775769 = 10657^2 + 5637^2 .

It is a super-2 number, since 2×145347418² = 42251743838533448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336853 + ... + 36336856.

Almost surely, 2^145347418 is an apocalyptic number.

145347418 is a deficient number, since it is larger than the sum of its proper divisors (72673712).

145347418 is an equidigital number, since it uses as much as digits as its factorization.

145347418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72673711.

The product of its digits is 53760, while the sum is 37.

The square root of 145347418 is about 12056.0116954157. The cubic root of 145347418 is about 525.7780367247.

It can be divided in two parts, 14534 and 7418, that added together give a cube (21952 = 28³).

The spelling of 145347418 in words is "one hundred forty-five million, three hundred forty-seven thousand, four hundred eighteen".