145113473 has 8 divisors (see below), whose sum is σ = 148815240. Its totient is φ = 141419520.

The previous prime is 145113461. The next prime is 145113497. The reversal of 145113473 is 374311541.

It can be written as a sum of positive squares in 4 ways, for example, as 1281424 + 143832049 = 1132^2 + 11993^2 .

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 145113473 - 2⁴ = 145113457 is a prime.

It is a super-2 number, since 2×145113473² = 42115840092243458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145113443) 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, 59861 + ... + 62237.

It is an arithmetic number, because the mean of its divisors is an integer number (18601905).

Almost surely, 2^145113473 is an apocalyptic number.

It is an amenable number.

145113473 is a deficient number, since it is larger than the sum of its proper divisors (3701767).

145113473 is a wasteful number, since it uses less digits than its factorization.

145113473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907.

The product of its digits is 5040, while the sum is 29.

The square root of 145113473 is about 12046.3053672070. The cubic root of 145113473 is about 525.4957952807.

The spelling of 145113473 in words is "one hundred forty-five million, one hundred thirteen thousand, four hundred seventy-three".