145415246 has 32 divisors (see below), whose sum is σ = 253704960. Its totient is φ = 62004096.

The previous prime is 145415243. The next prime is 145415261. The reversal of 145415246 is 642514541.

145415246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145415246² = 42291187538481032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145415243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9965 + ... + 19751.

It is an arithmetic number, because the mean of its divisors is an integer number (7928280).

Almost surely, 2^145415246 is an apocalyptic number.

145415246 is a deficient number, since it is larger than the sum of its proper divisors (108289714).

145415246 is a wasteful number, since it uses less digits than its factorization.

145415246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9848.

The product of its digits is 19200, while the sum is 32.

The square root of 145415246 is about 12058.8244037302. The cubic root of 145415246 is about 525.8598107417.

Adding to 145415246 its reverse (642514541), we get a palindrome (787929787).

The spelling of 145415246 in words is "one hundred forty-five million, four hundred fifteen thousand, two hundred forty-six".