145233739 has 8 divisors (see below), whose sum is σ = 174717440. Its totient is φ = 117934056.

The previous prime is 145233709. The next prime is 145233743. The reversal of 145233739 is 937332541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145233739 - 2¹³ = 145225547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145233698 and 145233707.

It is not an unprimeable number, because it can be changed into a prime (145233709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545859 + ... + 546124.

It is an arithmetic number, because the mean of its divisors is an integer number (21839680).

Almost surely, 2^145233739 is an apocalyptic number.

145233739 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145233739 is a deficient number, since it is larger than the sum of its proper divisors (29483701).

145233739 is a wasteful number, since it uses less digits than its factorization.

145233739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092009.

The product of its digits is 68040, while the sum is 37.

The square root of 145233739 is about 12051.2961543562. The cubic root of 145233739 is about 525.6409272816.

The spelling of 145233739 in words is "one hundred forty-five million, two hundred thirty-three thousand, seven hundred thirty-nine".